Johannes Kepler showed that IF the planetary orbits are elliptical,
THEN that would explain the measurements that Tycho Brahe collected
during his whole life.
Isaac Newton showed that IF gravity works the way he thought it does,
THEN the planetary orbits would have to be elliptical.
Both of these are only theories. They have never been proven.
the raindrop is the most fastest shape !!!! its true...i asked my tech teacherrr seriouslyyy =]
It says he had the strength of "10 grinches...plus 2!" "10 grinches...plus 2!"
Pennywise is a shape shifting Alien. His true form is shown near the end of the TV movie.
Usually they do the best they can, and they are almost always correct. We must keep in mind though that some of these things are theoretical and can't be depicted with absolute certainty.
Danish astronomer Tycho/Tyge Brahe (1546-1601) is immensely important for two reasons: Observing and measuring the (rough) distance to a Supernova, thereby proving that the firmament was not a god-given stable sphere, but a dynamic system. Making the most accurate measurements of planetary positions available at that time and for a long time thereafter. Brahe data was used by Kepler to develop his laws.
Johannes Kepler. Inspired Sir Isaac newton's discoveries.
The belt of constellations through which all the planets move is called zodiac. The true shape of the planetary orbits was discovered by Kepler.
Kepler
The true shape of planetary orbits was discovered by Johannes Kepler in the early 17th century. He formulated three empirical laws, now known as Kepler's Laws of Planetary Motion, which describe the motion of planets in the Solar System. These laws are as follows: The orbit of each planet is an ellipse with the Sun at one of the two foci. A line joining a planet and the Sun sweeps out equal areas during equal intervals of time. The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.Kepler's Laws of Planetary Motion provide a mathematical description of the motion of planets in the Solar System and explain why planets move in elliptical orbits around the Sun.
true
False. The shape of the orbit of each planet is an ellipse, not a perfect circle. This is described by Kepler's First Law of Planetary Motion, which states that planets move in elliptical orbits with the Sun at one of the foci. While some orbits may appear nearly circular, they are not perfectly circular.
Johannes Kepler was the first person to prove that all of the planets are in elliptical orbits, but he was unable to propose any mechanism that would cause this. Based largely on Kepler's work, Isaac Newton was able to invent the calculus of infinitesimals and to propose his law of universal gravitation, providing a mechanism that would cause the planets to behave in accordance with Kepler's laws. Newton's later comment "If I have seen further than other men, it is because I have stood on the shoulders of giants" was in direct reference to Kepler's essential contributions.
No. Comets are much smaller than planets, are irregular in shape, and have highly eccentric orbits.
Through years of research, and a lot of trial and error, Kepler was able to show that three laws accurately describe planetary motion. He was never able to explain WHY these laws worked, he only knew they DID.
From that vantage point, you would observe the planets orbiting the Sun counterclockwise. The orbits will be nearly in the same plane, known as the ecliptic plane. Also, you would see that inner planets move faster in their orbits compared to outer planets.
Everyone from the ancient Greeks on knew that the planets move in oval-type orbits, which were simulated by systems of circles. Later, after years of hard work, Johannes Kepler published the laws of planetary motion in 1618 which showed that the orbits are more accurately represented by ellipses, and each planet has its own ellipse with the Sun at one focus. Ellipses make very good approximations to the actual orbits of planets, but the gravitational effects of the other planets, especially Jupiter, mean that the planets depart slightly from true elliptical orbits. That is taken care of by regular updates to the orbital elements of the planets, which are numbers which describe the sizes and shapes, orientation and inclination of all the planets' elliptical orbits.
Yes, that is true. And planetary science is a giraffe.